Gtechniq G5 Water Repellent Coating for Glass and Perspex 100ml - Maximum Repellency, 3 to 6 Months Durability, Beads Water, Removes Contaminants - Perfect for Car Windows, Marine Glass | Maximum Repellence Against Water and Dirt, Works on Low Speed Driving, Easy to Apply, Lasts up to 4 Months

I've never used this type of product before, despite having thought about it for many years. Why did I waste those years! This stuff is amazing, the water just beads and runs away under the air pressure of moving forward, most effective over 30mph. Been out today in the rain and only flick wiped the windscreen twice, no need for contanst wiping. Much to my delight, when arriving at my destination, the windscreen was as clean as when I set off, even with having been past lorries throwing up a lot of dirty spray. As with most things, preparation is everything, prep'd windscreen with glass cleaner, then used the G4, then the G5, as per the instructions. results are stunning, go buy some!

Great product and easy to use

I bought this stuff along with some of the G4 Glass Nano Polish Gtechniq G4 Glass Nano Polish 100ml . The G4 polish preps the glass by getting rid of any residues before applying the rain-repellent coating really well. So, if you're putting this onto an older car (or even if you're not!) I would recommend using G4 polish before applying the G3 Nano Sealant Gtechniq G3 ClearVision Glass Coat . The G3 sealant itself goes on really easily. I found a folded paper kitchen towel to be the best thing. You need to apply this product as thin as you can while still getting total coverage otherwise the buffing job is going to need a lot of elbow grease! Apply the product nice and thin, allow it to dry to a haze and buff off (I use a microfibre buffing cloth) and it produces a smear-free finish fairly easily. The G3 buffs to a smearless finish a LOT easier than other rain-repellent products, such as Rain-X, that I've used before. Those products are almost like trying to get petroleum jelly off the glass, G3 is nothing like that. On the road the product performs as expected. Above 35-40mph rain just blows off the glass (and the side-windows if you do those too). There really is hardly any need to use the wipers except at very low (maneuvering) speeds. Even in heavy rain the water just beads up and runs off the screen very nicely. Another plus point is that in the summer it's easier to wash the bug splats off the screen and, in the winter, the frost doesn't stick quite so hard to the screen saving vital minutes scraping the glass each morning. Not so good, although this can be said of any rain-repellent product, is if you do use the wipers in the rain you get a momentary 'hazing' effect of the water which can degrade visibility a little but not dangerously so. Also, as product protection breaks down the wipers clear the screen unevenly making it harder to see. Therefore, if you do use these products, it's really important to top up the protection to keep the coating even. In terms of longevity, the product protection lasts reasonably well - several months I'd say. But, the more you use the wipers the shorter that time will be. So, if there's a lot of dirty spray and salt about (sadly you need washers and wipers to get rid of dirty, gritty stuff still) you'll be topping up your protection every 4-8 weeks depending on the mileage you do. Overall this is one of the best rain-repellent products out there and I would certainly buy it again. It only comes in a dinky little bottle, but you use very, very little each time you treat the glass that I'm sure one bottle will last several years.

Amazing product will be buying again the water falls from screen even on motorway windscreen wipers were not needed bought as our wipers were dodgy and wanted reassurance to be able to pull over on motorway in rain if they failed and this product gives you that reassurance 5 star

Very repellent and having put it on a few window pains in additional to my original requirement, even though I did no prep and used the leftovers on my cloth, 9 months on and that window still shows the repellent properties. Repellent on glass though may not be that useful as during the daytime, water beads on the glass can make it more difficult to see out (as the beads create bright spots) compared to a normal smear, but the same window at night then becomes far clearer than the smeary version. I think my bottle will last years give how little you need!

For the price, it does the job to certain extent. Easy to apply, feels a bit waxy upon polishing.

Very easy to apply, and the water just flies off the windshield

Genuinely Fantastic coating for windows and I'd say you get around 5-10 application depending on how liberal you are at applying it. Only given 4 stars due to the application process not being as easy as some competitors but in my opinion provides a much better coating. Items needed: 1x applicator pad (microfiber or foam) 1x microfibre cloth Instructions are: Clean windows thoroughly and dry Apply with applicator pad and when hazing buff off with microfibre cloth. The closest I can compare this to is a true ceramic coating it behaves very similar and provides about 80% of the effectiveness however longevity resembles something more like a synthetic wax on paint and maybe comparable performance to be honest which is not a bad thing. Caution applying it near rubbers as it will stain them. ....good soup....

He probado este producto en dos ocasiones. La primera lo puse sin un prep y sin algún producto que quitara el poco sarro que existía. Duro una semana y un par de días. Lo estoy usando en época de lluvias. La segunda ocasión prepare los cristales perfectamente y lo aplique con pads y suedes. Fue mucho mejor la aplicación. El efecto hidrofobico fue excelente la primera semana, la segunda semana disminuyo considerablemente, me parece que este producto no dura mas de unas 3 semanas. Por el tiempo de aplicación considero que no vale la pena en absoluto. Insisto los primero 3 días funcionó bastante bien en carretera, despues de la primera semana se ha ido degradando considerablemente. Finalmente, el producto inicia su efectividad a partir de 80-90 km/h, arriba de 100 es muy buena, pero antes de 80 es mínimo el efecto. Lo aplique tambien en un casco de moto, me parece que funcionará bien, al menos por un tiempo. No lo recomendaría.

Tutto ok è un buon prodotto.

Easy to apply, works as well as Rain X however lasts a lot longer. Saw a review and decided to try it. For the price it's a no brainer. I saw comments that it was difficult to remove however I did mine on a cloudy day with temps in the low 60s. I used a new microfiber cloth from Costco to remove and had no issues. Follow the instructions to shake well and use a small amount and wait the 15 minutes before buffing.

Almost doesn't work and leave white coating over the widow that affects vision. Aquapel still is the best for me.

The hydrophobic properties of this is really good. I would say its equal to Rain-x when its brand new. Expect Rain-x doesnt last for nearly as long. Ive done several washes on my vehicle as well as using wipe fluid every once in a while and it is still working really well now since about 4 months ago. Rain-x you start to notice its weakening significantly in just a couple weeks. The main downside ive noticed is after applying it takes a LOT of elbow grease to fully buff it in. I kept going and going and could still see a haze, took about 15 minutes and a sore shoulder to get it done. Maybe I needed to apply it thinner, but either way Im getting a polishing wheel attachment for my drill for next time.